diff --git a/nac3ld/src/dwarf.rs b/nac3ld/src/dwarf.rs index e601b210d0..7feededc49 100644 --- a/nac3ld/src/dwarf.rs +++ b/nac3ld/src/dwarf.rs @@ -90,6 +90,7 @@ impl<'a> DwarfReader<'a> { pub fn read_u8(&mut self) -> u8 { let val = self.slice[0]; self.slice = &self.slice[1..]; + self.virt_addr += 1; val } } @@ -101,6 +102,7 @@ macro_rules! impl_read_fn { pub fn $byteorder_fn(&mut self) -> $type { let val = LittleEndian::$byteorder_fn(self.slice); self.slice = &self.slice[mem::size_of::<$type>()..]; + self.virt_addr += mem::size_of::<$type>() as u32; val } )* @@ -319,7 +321,7 @@ impl<'a> CFI_Record<'a> { /// Returns a [DwarfReader] initialized to the first Frame Description Entry (FDE) of this CFI /// record. pub fn get_fde_reader(&self) -> DwarfReader<'a> { - DwarfReader::from_reader(&self.fde_reader, true) + DwarfReader::from_reader(&self.fde_reader, false) } /// Returns an [Iterator] over all Frame Description Entries (FDEs). @@ -396,6 +398,8 @@ impl<'a> Iterator for FDE_Records<'a> { return None; } + let fde_addr = self.reader.virt_addr; + // Remove the length of the header and the content from the counter let length = match self.reader.read_u32() { // eh_frame with 0-length means the CIE is terminated @@ -413,7 +417,7 @@ impl<'a> Iterator for FDE_Records<'a> { let next_val = if cie_ptr != 0 { let pc_begin = read_encoded_pointer_with_pc(&mut self.reader, self.pointer_encoding) .expect("Failed to read PC Begin"); - Some((pc_begin as u32, self.reader.virt_addr)) + Some((pc_begin as u32, fde_addr)) } else { None }; @@ -447,8 +451,7 @@ impl<'a> EH_Frame_Hdr<'a> { writer.write_u8(0x3B); // table_enc - .eh_frame_hdr section-relative 4-byte signed value let eh_frame_offset = eh_frame_addr.wrapping_sub( - eh_frame_hdr_addr + writer.offset as u32 + ((mem::size_of::() as u32) * 4), - ); + eh_frame_hdr_addr + writer.offset as u32); writer.write_u32(eh_frame_offset); // eh_frame_ptr writer.write_u32(0); // `fde_count`, will be written in finalize_fde